After letting the four girls of the 6th Destroyer Squadron leave, Chen Yu turned his attention back to his work.


    However, even as he attended to the tasks at hand, his thoughts wandered to the changes in hisbat strength brought about by the return of the 6th Destroyer Squadron.


    If viewed purely from the perspective of Transcendentbat power, the addition of just four Legendary-ssbatants to his forces was akin to a drop in the bucket for a war on the scale of the impending invasion by Yomi.


    But if calcted based on the firepower projection capabilities of modern destroyers, thebat effectiveness of the four modernized destroyers in the 6th Destroyer Squadron would surpass that of an entire fleet from the World War II era by a frightening margin.


    During World War II, the firepower of warships was primarily expressed through bombardments from battleship guns and bomb drops from aircraft carrier-based nes. However, these methods were limited by the technology of the time, making their firepower projection far less effective in terms of both uracy and magnitudepared to modern warships.


    A single anti-ship missile fired by a modern destroyer can sink a warship, whereas in World War II, even battleships found it difficult to sink enemy ships. For a more extreme example, look no further than the Bismarck in the Denmark Strait. Surrounded and attacked by dozens of Royal Navy warships and struck by over 400 shells of various calibers, it still took considerable effort to sink. The limitations of World War II-era firepower projection are abundantly clear.


    In contrast, a modern warship could achieve the same results with just two anti-ship missiles fired by a single destroyer.


    Thus, thebat effectiveness of the four modernized destroyers cannot simply be measured in terms of four Legendary-ssbatants.


    In fact, with sufficient ammunition, these four modern destroyers could outmatch the entirety of all participating navies from World War II. Such is the staggering difference brought about by technological advancements.


    The rapid post-war development of radar technology has elevated modern naval radar systems far beyond the capabilities of their early counterparts from the World War II era, whether in detection range or precision.


    And that''s not even ounting for the advanced electronic countermeasures and stealth capabilities of modern warships. To World War II-era ships, a modern warship would remain effectively invisible unless it came into direct line-of-sight.


    Just as Chen Yu was mulling over radar-rted issues, the children of the 6th Destroyer Squadron, who had just left, suddenly returned. The usually quiet Hibiki peeked through the office doorway and said, "Commander, when we arrived earlier, we noticed someone seemingly surveilling the hospital. Although we don''t know if it''s rted to you, we thought it was better to inform you."


    "Someone surveilling the hospital? How did you notice them?" Chen Yu asked with some curiosity. More than the surveince itself, he was intrigued by how Hibiki and the others identified the watcher.


    "We upgraded to new radar systems. Our detection capabilities have improved significantly. Earlier, we detected a car in front of the hospital repeatedly emitting signals, seeminglymunication signals, so we paid attention. It was a white van," Akatsuki chimed in from behind Hibiki, poking her small head through the door and borating while leaning on the door handle.


    After listening to Akatsuki and Hibiki''s report, Chen Yu pondered briefly before asking, "Can you intercept their signals?"


    "Yes, Commander. Although they are using encrypted signals, interception is not a problem. Plus, ourputer systems can decrypt the signals. The encryption they''re using isn''t military-grade, so decryption shouldn''t be too difficult," Akatsuki affirmed with a nod, a look of eager excitement spreading across her face as if itching to demonstrate their new equipment in front of Chen Yu.


    Hearing Akatsuki''s confident response, Chen Yu nodded at her and said, "In that case, let''s find out who they are."


    Receiving Chen Yu''s order, Akatsuki and the other three girls darted back into his office. Akatsuki summoned her ship equipment and put on a pair ofrge headphones with an integrated microphone, situating them snugly over her little head. The radar in her ship equipment began operating as well.


    The other three girls gathered around Akatsuki without disturbing her, simply watching quietly. Even the usually lively Rai disyed a more reliable side, standing quietly beside Akatsuki with a serious and concerned expression.


    With one hand pressed against the headphones, Akatsuki focused intently on the soundsing through them, waiting for the radar to pinpoint the signal she needed to intercept.


    Her eyes suddenly brightened—she had found the signal.


    Locking onto the signal, she quickly decrypted it using her onboardputer system. The signal was now under Akatsuki''s surveince.


    Adjusting her ship equipment slightly, Akatsuki briskly approached Chen Yu, removed therge headphones from her head, and handed them to him.


    Taking the headphones from Akatsuki, Chen Yu ced them over his ears. He heard Kusanagi Ritsuko''s voice in conversation with someone.


    "...How are... things on your end?" Kusanagi Ritsuko''s voice was slightly distorted, but not enough to obscure her identity or her words to Chen Yu.


    "Everything''s... normal, the target hasn''t... left the shop..." The person speaking to Kusanagi sounded bored and unmotivated, their tone betraying a sense of impatience. Nheless, they continued reporting to Kusanagi.


    From the conversation, Chen Yu discerned that Kusanagi Ritsuko was still monitoring Inomata Naoki and Minami. However, both she and the people she had enlisted had yet to uncover anything substantial. These helpers, tired of the monotonous and fruitless surveince, seemed ready to quit, though Kusanagi Ritsuko remained determined to uncover the truth.


    Having figured out the situation, Chen Yu saw no reason to continue listening. Returning the headphones to Akatsuki, he gestured for her to stow away her ship equipment. Resting a finger under his chin, he contemted how best to handle this matter.


    "Commander, do you need us to deal with the people surveilling the hospital?" Akatsuki tentatively asked Chen Yu. Despite being just children, they earnestly wanted to assist him in any way they could.


    Seeing the anticipation in the expressions of Akatsuki and the other three girls, Chen Yu considered the matter before asking Akatsuki, "Are you certain you can handle them?"


    "Absolutely, Commander. After our modernization updates and equipment upgrades, our capabilities have improved significantly. Handling them is no problem at all," Akatsuki earnestly assured him. As though sensing Chen Yu''s intent, an excited smile spread across her face.


    Nodding at Akatsuki, Chen Yu said as she anticipated, "In that case, I''ll leave them to the 6th Destroyer Squadron. Don''t harm them—just make sure they back off."